Rolex Day-Date 40 Yellow Gold — Silver Diagonal Motif Index | Ref. 228398TBR

The Day-Date 40 in reference 228398TBR occupies the uppermost tier of Rolex's presidential collection, distinguished by its factory-set baguette-cut gemstone bezel — the TBR suffix denoting a rainbow-hued arrangement of fancy-coloured sapphires that graduate in tone around the full circumference. Introduced with the 40 mm case generation in 2015, this reference replaced the classic 36 mm Day-Date and brought with it both a larger wearing surface and a thoroughly modernised movement. The silver diagonal motif dial, with its subtly textured sunburst pattern, serves as a considered counterpoint to the spectacle of the gem-set bezel.

At its heart beats the Calibre 3255, Rolex's landmark in-house movement featuring a Chronergy escapement for superior efficiency, a Parachrom hairspring for antimagnetic resilience, and a 70-hour power reserve. The 40 mm case is rendered in 18 ct yellow gold — a material Rolex refines and casts in-house — and the signature President bracelet provides a fluid, three-piece link construction exclusive to this line. Applied hour markers index the dial with measured elegance, while the twin apertures at 12 o'clock display the day and date simultaneously.

For the serious collector, the 228398TBR rainbow bezel commands a premium that often exceeds its retail price significantly in the secondary market. The combination of yellow gold and a chromatic gem-set bezel appeals to buyers who regard the Day-Date as wearable art rather than simply a precision timepiece. It suits formal occasions and confident everyday wear equally, and its status as one of Rolex's most coveted factory gem-set references ensures enduring demand regardless of broader market fluctuations.